左心房三维重建在二尖瓣成形术中的应用

摘要

To investigate the change of the left atrial volume before and after the percutanous balloon mitral valvuloplasty(PBMV),the 3-D reconstruction of the left atrium volume gas performed in 16 patients.The left atrial volume was 135.76±54.25cm3in diastole and 83.26±31.79cm3in systole before the PBMV and 89.34±46.55m3in diastole and 55.43±18.84m3in systole after PBMV.The change of the left atrial volume before and after PBMV was significant.No significant correlation existed between left atrial volume and the left atrial pressure,left atrial volume and pulmonary artery pressure both before and after PBMV.%为观察左心房容量大小在二尖瓣成形术中的作用,应用Macintosh Echo PAC左室三维重建软件分析系统对二尖瓣成形术患者术前和术后的左房进行三维重建,并测定收缩期和舒张期左房容量.为了解左房容量与左房压、肺动脉压之间的关系,对左房压和肺动脉压与左房容量之间的关系进行了相关分析.结果显示,术前收缩期左房容量为83.26±31.97cm3,舒张期容量为135.76±54.25cm3;术后收缩期容量为55.43±18.84cm3,舒张期容量为89.34±46.55cm3.术前、术后收缩期和舒张期容量改变均具极显著的差异.术前左房容量和术前左房压、肺动脉压,术后左房容量与术后左房压、肺动脉压之间无显著性差异.